DE69628692T2 - Modulator and method for modulation and demodulation - Google Patents
Modulator and method for modulation and demodulationInfo
- Publication number
- DE69628692T2 DE69628692T2 DE69628692T DE69628692T DE69628692T2 DE 69628692 T2 DE69628692 T2 DE 69628692T2 DE 69628692 T DE69628692 T DE 69628692T DE 69628692 T DE69628692 T DE 69628692T DE 69628692 T2 DE69628692 T2 DE 69628692T2
- Authority
- DE
- Germany
- Prior art keywords
- demodulation
- modulator
- modulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/389—Demodulator circuits; Receiver circuits with separate demodulation for the phase and amplitude components
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10917995 | 1995-04-11 | ||
JP20513895A JP3455934B2 (en) | 1995-04-11 | 1995-07-20 | Modulator |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69628692D1 DE69628692D1 (en) | 2003-07-24 |
DE69628692T2 true DE69628692T2 (en) | 2003-12-18 |
Family
ID=26448959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69628692T Expired - Fee Related DE69628692T2 (en) | 1995-04-11 | 1996-04-03 | Modulator and method for modulation and demodulation |
Country Status (5)
Country | Link |
---|---|
US (1) | US5818875A (en) |
EP (1) | EP0738064B1 (en) |
JP (1) | JP3455934B2 (en) |
CA (1) | CA2173530C (en) |
DE (1) | DE69628692T2 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0958686B1 (en) * | 1997-02-05 | 2003-08-27 | Symbionics Ltd. | Demodulation with separate branches for phase and amplitude |
JP3033708B2 (en) * | 1997-04-21 | 2000-04-17 | 埼玉日本電気株式会社 | Peak clipping circuit and quadrature modulation transmitter having the peak clipping circuit |
JP2000201132A (en) | 1998-11-06 | 2000-07-18 | Matsushita Electric Ind Co Ltd | Transmitter-receiver |
EP1017201A1 (en) * | 1998-12-29 | 2000-07-05 | Alcatel | QAM receiver with separate detection of phase and amplitude |
US6389080B1 (en) * | 1999-03-06 | 2002-05-14 | Lockheed Martin Corp. | Random phase shift keying |
US6198779B1 (en) * | 1999-05-05 | 2001-03-06 | Motorola | Method and apparatus for adaptively classifying a multi-level signal |
JP3522725B2 (en) * | 1999-08-06 | 2004-04-26 | 三菱電機株式会社 | Quadrature demodulator and quadrature demodulation method |
US6934344B2 (en) * | 2000-03-27 | 2005-08-23 | Interdigital Technology Corporation | Digital automatic gain control |
US7424039B2 (en) * | 2003-03-28 | 2008-09-09 | Nortel Networks Limited | Method and apparatus for processing multiple common frequency signals through a single cable |
US7782827B2 (en) * | 2003-03-28 | 2010-08-24 | Nortel Networks Limited | Method and apparatus for processing multiple common frequency signals through a single cable using circulators |
JP4220365B2 (en) * | 2003-12-08 | 2009-02-04 | 株式会社ケンウッド | Transmitting apparatus, receiving apparatus, data transmitting method, and data receiving method |
US8494071B2 (en) * | 2003-12-08 | 2013-07-23 | Kabushiki Kaisha Kenwood | Device and method for correcting a data error in communication path |
JP4388366B2 (en) * | 2003-12-26 | 2009-12-24 | 株式会社ケンウッド | Transmission device, reception device, data transmission method, data reception method, and program |
US7729726B2 (en) | 2004-03-26 | 2010-06-01 | Nortel Networks Limited | Feeder cable reduction |
US8135086B1 (en) | 2004-08-09 | 2012-03-13 | Rockstar Bidco, LP | Cable reduction |
JP4542405B2 (en) * | 2004-09-30 | 2010-09-15 | 株式会社ケンウッド | Baseband signal generation apparatus, baseband signal generation method, and program |
TWI280017B (en) * | 2005-10-03 | 2007-04-21 | Ind Tech Res Inst | Communication system with demodulation of two-level differential amplitude-shift-keying signals and method thereof |
CN1946072B (en) * | 2005-10-08 | 2010-05-12 | 财团法人工业技术研究院 | Communication system with two bit differentical type amplitude shift modulation and demodulation |
US8452333B2 (en) * | 2005-12-12 | 2013-05-28 | Apple Inc. | Feeder cable reduction |
JP5153673B2 (en) * | 2009-02-09 | 2013-02-27 | 三菱電機株式会社 | Optical communication receiver |
WO2013150704A1 (en) * | 2012-04-03 | 2013-10-10 | パナソニック株式会社 | Video data transmission device and reception device |
US9009503B2 (en) | 2012-07-05 | 2015-04-14 | International Business Machines Corporation | Branch circuit determination without external synchronization |
US9503133B2 (en) * | 2012-12-03 | 2016-11-22 | Dockon Ag | Low noise detection system using log detector amplifier |
JP6416195B2 (en) * | 2013-03-15 | 2018-10-31 | ドックオン エージー | Frequency selective logarithmic amplifier with natural frequency demodulation capability |
EP2797225B1 (en) * | 2013-04-24 | 2018-01-10 | Analog Devices Global | Method of and apparatus for demodulating an amplitude modulated signal |
EP3044723A4 (en) * | 2013-09-12 | 2017-05-03 | Dockon AG | Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion |
US11183974B2 (en) * | 2013-09-12 | 2021-11-23 | Dockon Ag | Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion |
US11082014B2 (en) | 2013-09-12 | 2021-08-03 | Dockon Ag | Advanced amplifier system for ultra-wide band RF communication |
CN114401176B (en) * | 2021-12-31 | 2023-05-09 | 北京升哲科技有限公司 | Signal arrival detection method and device, electronic equipment and storage medium |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2019359C (en) * | 1989-06-21 | 1993-07-06 | Hiroyasu Muto | Detection of a particular signal sequence with no adverse influence of multipath transmission |
US5335359A (en) * | 1990-05-31 | 1994-08-02 | Nec Corporation | Diversity receiver using matched filter and decision feedback equalizer |
JP3342877B2 (en) * | 1991-05-27 | 2002-11-11 | 株式会社東芝 | Digital wireless communication device and its modulation circuit |
JPH0744473B2 (en) * | 1993-02-02 | 1995-05-15 | 日本電気株式会社 | Demodulation system |
US5535244A (en) * | 1993-06-07 | 1996-07-09 | Matsushita Electric Industrial Co., Ltd. | Digital modulating/demodulating apparatus and a digital demodulating apparatus |
JPH06350657A (en) * | 1993-06-07 | 1994-12-22 | Matsushita Electric Ind Co Ltd | Digital modulation demodulation device |
-
1995
- 1995-07-20 JP JP20513895A patent/JP3455934B2/en not_active Expired - Fee Related
-
1996
- 1996-04-03 DE DE69628692T patent/DE69628692T2/en not_active Expired - Fee Related
- 1996-04-03 EP EP96302381A patent/EP0738064B1/en not_active Expired - Lifetime
- 1996-04-03 US US08/627,084 patent/US5818875A/en not_active Expired - Fee Related
- 1996-04-04 CA CA002173530A patent/CA2173530C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69628692D1 (en) | 2003-07-24 |
CA2173530C (en) | 1999-12-28 |
EP0738064A2 (en) | 1996-10-16 |
EP0738064A3 (en) | 1998-03-18 |
EP0738064B1 (en) | 2003-06-18 |
JP3455934B2 (en) | 2003-10-14 |
CA2173530A1 (en) | 1996-10-12 |
US5818875A (en) | 1998-10-06 |
JPH08340365A (en) | 1996-12-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: PATENTANWAELTE KNOBLAUCH UND KNOBLAUCH, 60322 FRANK |
|
8339 | Ceased/non-payment of the annual fee |